1020655124 has 6 divisors (see below), whose sum is σ = 1786146474. Its totient is φ = 510327560.

The previous prime is 1020655123. The next prime is 1020655147. The reversal of 1020655124 is 4215560201.

It can be written as a sum of positive squares in only one way, i.e., 997422724 + 23232400 = 31582^2 + 4820^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1020655093 and 1020655102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020655123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127581887 + ... + 127581894.

It is an arithmetic number, because the mean of its divisors is an integer number (297691079).

Almost surely, 2^1020655124 is an apocalyptic number.

It is an amenable number.

1020655124 is a deficient number, since it is larger than the sum of its proper divisors (765491350).

1020655124 is a wasteful number, since it uses less digits than its factorization.

1020655124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255163785 (or 255163783 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1020655124 is about 31947.6935630727. The cubic root of 1020655124 is about 1006.8381741222.

The spelling of 1020655124 in words is "one billion, twenty million, six hundred fifty-five thousand, one hundred twenty-four".